Chemistry : Balancing Chemical Equations
What numbers are needed in the blanks to balance the following chemical equations?
Type these numbers separated by commas with no spaces in the answer.
Word Equation : Sulfur + Sulfuric acid → Sulfur dioxide + Water
Molecular Equation : _______ S + _______ H2SO4 → _______ SO2 + _______ H2O
Balanced Equation : S + 2 H2SO4 → 3 SO2 + 2 H2O
Answer : 1,2,3,2